Power system learning / Generator Runback

Generator Runback and Over-Generation Shedding in Defense Scheme Logic

Generator runback reduces generation output when the system has too much supply for the available load or when network constraints require lower injection. It is especially important in islanded systems.

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When generation becomes the problem

After islanding or load loss, generation may exceed the island demand. A defense scheme may need to run back or trip generation to maintain balance.

OGS concept

Over-generation shedding selects generation reduction targets rather than load trips. This is the opposite of load shedding but follows the same need for explainable logic.

Simulator use

Trigger OGS island scenarios and observe how generator output, capacity labels, and trip matrix reasoning respond.

Related learning topics

Adaptive Defense SchemeLearn adaptive defense scheme concepts including topology awareness, explainable trip matrix reasoning, overload shedding, over-generation shedding, islanding, and generator runback. IslandingUnderstand power system islanding, grid separation, source-load balance, local generation, interconnector limits, and island mode operation. MicrogridLearn microgrid islanding, local generation balance, load priority, interconnection, import/export behavior, and defense logic for small power systems. Power FlowLearn what power flow means, why MW direction matters, and how generators, loads, tie-lines, interconnectors, and busbars interact in an electrical network.